PART A AND PART B A 22-cm-diameter cylinder that is 45 cm long contains46g of oxygen gas at 20° C.You may want to review (Pages 500 - 502).For general problem-solving tips and strategies for thistopic, you may want to view a Video Tutor Solution ofAir in warmed tire.▼Part AHow many moles of oxygen are in the cylinder?Express your answer using two significant figures.n =SubmitPart BN =ΑΣΦSubmitRequest AnswerHow many oxygen molecules are in the cylinder?Express your answer using two significant figures.V— ΑΣΦ*****Request Answer??molmolecules

A 22-cm-diameter cylinder that is 45 cm long contains 46 g of oxygen gas at 20°C. You may want to review (Pages 500 - 502). For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Air in warmed tire. How many moles of oxygen are in the cylinder? Express your answer using two significant figures. 15. ΑΣΦ n = Submit Part B How many oxygen molecules are in the cylinder? Express your answer using two significant figures. 5 ΑΣΦ N = Request Answer Submit Request Answer ? ? mol molecules

A 22-cm-diameter cylinder that is 45 cm long contains 46 g of oxygen gas at 20°C. You may want to review (Pages 500 - 502). For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Air in warmed tire. How many moles of oxygen are in the cylinder? Express your answer using two significant figures. 15. ΑΣΦ n = Submit Part B How many oxygen molecules are in the cylinder? Express your answer using two significant figures. 5 ΑΣΦ N = Request Answer Submit Request Answer ? ? mol molecules

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 49P: The height of the Washington Monument is measured to be 170.00 m on a day when the temperature is...

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The Trans-Alaskan pipeline is 1 300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from 73C to +35C. (a) How much does the steel pipeline expand due to the difference in temperature? (b) How can one compensate for this expansion?
(a) Use the ideal gas equation to estimate the temperature at which 1.00 kg of steam (molar mass M=18.0 g/mol) at a pressure of 1.50106 Pa occupies a volume of 0.220 m3. (b) The van der Waals constants for water are a=0.5537 Pa m6/mol2 and b=3.049105 m3/mol. Use the Van der Waals equation of state to estimate the temperature under the same conditions. (c) The actual temperature is 779 K. Which estimate is better? `
The height of the Washington Monument is measured to be 170.00 m on a day when the temperature is 35.0 . What will its height be on a day when the temperature falls to -10.0 ? Although the monument is made of limestone, assume that its coefficient of thermal expansion is the same as that of marble. Give your answer to five significant figures.
An aluminum rod 0.500 m in length and with a cross sectional area of 2.50 cm2 is inserted into a thermally insulated vessel containing liquid helium at 4.20 K. The rod is initially at 3(H) K. (a) If one-halt of the rod is inserted into the helium, how many liters of helium boil off by the time the inserted half cools to 4.20 K? Assume the upper half does not yet cool, (b) If the circular surface of the upper end of the rod is maintained at 300 K. what is the approximate boil-off rate of liquid helium in liters per second after the lower half has reached 4.20 K? (Aluminum has thermal conductivity of 3 100 YV/m K at 4.20 K; ignore its temperature variation. The density of liquid helium is 125 kg/m3.)
(a) At what temperature does water boil at an altitude of 1500 m (about 5000 ft) on a day when atmospheric pressure is 8.59104N/m2 ? (b) What about at an altitude of 3000 m (about 10,000 ft) when atmospheric pressure is 7.00104N/m2 ?
The rectangular plate shown in Figure P16.60 has an area Ai equal to w. If the temperature increases by T, each dimension increases according to Equation 16.4, where is the average coefficient of linear expansion. (a) Show that the increase in area is A = 2Ai T. (b) What approximation does this expression assume?
(a) Calculate the rate of heat conduction through a double-paned window that has a 150-m2 area and is made of two panes of 0.800 cm-thick glass separated by a 1.00 cm air gap. The inside surface temperature is 15.0 C, while that on the outside is 10.0 OC. (Hint: There are identical temperature drops across the two glass panes. First find these and then the temperature drop across the air gap. This problem ignores the increased heat transfer in the air gap due to convection.) (b) Calculate the rate of heat conduction through a 1.60-cm-thick window of the same area and with the same temperatures. Compare your answer with that for part (a).
Two cylinders A and B at the same temperature contain the same quantity of the same kind of gas. Cylinder A has three times the volume of cylinder B. What can you conclude about the pressures the gases exert? (a) We can conclude nothing about the pressures. (b) The pressure in A is three times the pressure in B. (c) The pressures must be equal. (d) The pressure in A must be one-third the pressure in B.
The measurement of the average coefficient of volume expansion for a liquid is complicated because the container also changes size with temperature. Figure P19.62 shows a simple means for measuring despite the expansion of the container. With this apparatus, one arm of a U-tube is maintained at 0C in a water-ice bath, and the other arm is maintained at a different temperature Tc in a constant-temperature bath. The connecting tube is horizontal. A difference in the length or diameter of the tube between the two arms of the U-tube has no effect on the pressure balance at the bottom of the tube because the pressure depends only on the depth of the liquid. Derive an expression for for the liquid in terms of h0, hi and Tc.